motor skip ? (1 Viewer)

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Apr 29, 2010
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104
Location
North Carolina
fj40 4.3 inline 6, have skip, backfire, black tips on spark plugs, low on power, I have changed plugs, fuel filter, have electronic ignition, What else to look for , thanks
 

1911

chupacabra
Joined
Aug 11, 2006
Messages
6,475
Location
Parker County, Texas
fj40 4.3 inline 6, have skip, backfire, black tips on spark plugs, low on power, I have changed plugs, fuel filter, have electronic ignition, What else to look for , thanks

Set the ignition timing, check for correct operation of the vacuum advance (if you have one) on the distributor.
 

Shark56

SILVER Star
Joined
May 12, 2005
Messages
941
Location
Dover, DE
In addition to above.
Plug wire condition?
Cap and rotor condition?
Checked for vaccum leaks?
I just fixed an intermittent misfire from a bad plug wire. Took me awhile to find it. Wiggling the plug wires and getting a shock from one was how.
It sounds like a timing issue by your description.
 

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